Many iPhone users use a Bluetooth headset on their phones. However, they may not know that you can use the same headset to listen to their Visual Voicemail.

To listen to your voicemail through your headset, just navigate to Phone > Voicemail. Once there, click the "Audio" button in the top right -- you will be presented with some options. If you have your headset paired with your iPhone, you will see a headset option along with the iPhone and Speaker Phone options.

Clicking any one of these will immediately transfer the audio to the output specified.

Thanks for the tip, Brandon!

Want more iPhone tips and tricks like this? Visit TUAW's iPhone 101 section today!

Who says crime doesn't pay?

Aliph, makers of the ultra-cool noise-reducing Jawbone Bluetooth headset, have come up with a great marketing scheme. If you live in California, Connecticut, the District of Columbia, New Jersey, New York, or Washington -- all states with laws requiring hands-free use of mobile phones -- and receive a ticket for yapping with your iPhone plastered to your ear, Jawbone will deduct $20 off the purchase price of one of their headsets.

You can't get a discount on the Silver Tongue model, but the prices for the Goldy Lips and Blah Blah Black versions end up at $129.99 and $109.99 respectively. All you need to do is go to the Jawbone website, look for the Hands Free Ticket Processor, and enter your state and ticket number. $20 is taken off the original purchase price, and you're ready to go.

This is one case where I wish I did live in a nanny state that was forcing me to use a hands-free kit!

If you frequent the library (or quiet places) then Breakaway could be a god-send. You'll never be afraid of your headphones becoming unplugged when you have John Mayer playing loudly in iTunes. If you have ever used an iPod, then you know that when you unplug your headphones while playing a song it is automatically paused; Well, Breakaway does this for your Mac and iTunes.

You can choose from many different settings in Breakaway, including setting triggers and fade in/out speeds. The only downside to this application is that it doesn't work with USB headphones, only ones plugged into the audio out port on your Mac. However, this freeware is handy to have around.

You can download Breakaway for free from the developer's website.

The fake lips in the copy and paste demo (and the stealth declaration of love at the end) had me laughing out loud, but this one has me rolling -- who knew the iPhone demo guy was such a hip hop mastermind? Pete Miser was the one who put the song together, and apparently Merritt Duff edited the video. I especially like the dance at the end, and the lyrics are perfect. I've never bought a Bluetooth headset because I think they just plain look dumb, but people have thought I was crazy on the bus as I talked directly into the little mic on the headphones.

I love it. John from the MacBook Air demos should do a dis song, and we have a mobile computing rap feud!

[Via BB, and thanks Josh!]

And the exhaustive analysis of Apple's iPhone Guided Tour continues, this time with the third installment and photo gallery covering some of the interesting new features we found in the iPod app. This is of course one of the iPhone's key components, and Apple has really made some great improvements to the UI and experience. While we have already seen most of them demonstrated by Jobs and in the commercials, there were a few handy new tidbits revealed in this tour.

Cover Flow track selection: We've seen the wonders of Cover Flow, but I don't remember seeing that you can actually select an album and chose a track while still in the Cover Flow view. Previously, I thought the demos showed that you had to select the album and switch back to a full track list view; but not so here.

Theatrical Aspect vs Full Screen video: Looks like the iPhone doesn't default to playing widescreen movies in what Apple calls 'theatrical aspect' so you can see the whole thing; they're zoomed in to a full screen view. Double tap for full widescreen, double tap again to get out.

On screen movie controls: I think we've seen them before, but I couldn't find a screenshot, and even the Calamari ad has the user hit the Home button to get out of the movie; he doesn't actually interact with it.

Customizable iPod buttons: Here's one of the slick ways Apple has really improved on customizability, allowing users to specify which five buttons line the bottom of the iPod app. Listen to a lot of podcasts? Want a genre button instead of artists? You can swap out all the buttons for easy access to the parts of your library you use most. Brilliant.

Headset controls: I also don't remember much being said about the headset that comes with the iPhone. At first glance it looks like a simple, standard set of iPod headphones with a new microphone slapped on, but the mic has a surprisingly functional button. Of course, you can use it to answer and end calls, but when listening to music, you can double-click the button to advance tracks.

That's about all the new goodies we picked up in the iPod section of the video. Stay tuned for more in-depth analysis soon.

One of our Weblogs, Inc. designers sent a Twitter the other day bragging that his new Aliph Jawbone had appeared on his doorstep. After a quick Google search, I realized he wasn't talking about a new part of his anatomy, but rather a hot little Bluetooth headset. They don't get slicker than this-- not only does it look like it taps right into your face, but apparently the science works, too, if the demo is any indication. At $120, it ain't the cheapest headset you'll find, but according to our designer, it's completely worth it.

And so I wasn't that surprised to see, according to Macworld, that Apple is going to be selling these babies in their stores, right alongside the iPhone. Apparently a quality (and expensive) phone calls for a quality (and expensive) Bluetooth headset, and we're sure Aliph is thrilled to get shelf space next to what is already set to be one of the hottest products of the year. There's no word if the Jawbone is in Apple stores yet, but Aliph says if you want one, they'll be sitting right there in 157 Apple stores across the country next Friday.